package com.uphone.kingmall.utils;

import android.graphics.Bitmap;

import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.WriterException;
import com.google.zxing.common.BitMatrix;

import java.util.Hashtable;

import static android.graphics.Color.BLACK;
import static android.graphics.Color.WHITE;

/**
 * <pre>
 *     author : 孙增艳
 *     e-mail : sunzengyan@outlook.com
 *     time   : 2018/8/15
 *     desc   : 二维码的工具类
 *     version: 1.0
 * </pre>
 */
public class QRCodeUtils {

    /**
     * 生成二维码图片
     */
    public static Bitmap createQRCode(String url, int widthAndHeight)
            throws WriterException {
        Hashtable<EncodeHintType, String> hints = new Hashtable<EncodeHintType, String>();
        hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
        BitMatrix matrix = new MultiFormatWriter().encode(url,
                BarcodeFormat.QR_CODE, widthAndHeight, widthAndHeight);

        int width = matrix.getWidth();
        int height = matrix.getHeight();
        int[] pixels = new int[width * height];
        //鐢婚粦鐐?
        for (int y = 0; y < height; y++) {
            for (int x = 0; x < width; x++) {
                if (matrix.get(x, y)) {
                    pixels[y * width + x] = BLACK; //0xff000000
                }else{
                    pixels[y * width + x] = WHITE; //FFF
                }
            }
        }
        Bitmap bitmap = Bitmap.createBitmap(width, height,
                Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    }
}
